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Science Stars: Rainbow Stacking

8th Grade Lesson Plan

Objective:
Students will plan and carry out an experiment which tests the densities of 5 different water samples. After successfully completing the experiment, students will have five colors of water stacked in a straw and understand the relationship between salinity and density.

Standards:
8.a. Students know density is mass per unit volume d. Students know how to predict whether an object will float or sink. 9.a Plan and conduct a scientific investigation to test a hypothesis

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